I really did, too. This teacher, I originally wrote in the message before class that I joined the free conversation, but this teacher feels like I didn't read that message at all. So the whole class is very quiet, and the class is also quite boring. And this teacher, I don't know why he loves typing. The message note is full, so I hardly need to speak, so it feels like you have closed the microphone, and the teacher's internet is also slow, so I can't say anything. The total time I spent speaking in the entire class was less than 10 minutes. The other teachers were typing, and I couldn't stand it while typing. So, this teacher, um, don't love typing so much, and I can add some interaction. then, the teacher said that he hardly looked at the time, and class was not finished until 27 today. So the teacher suggested adding a little interaction and making the class a little more interesting. I hope my comments can be helpful to everyone, thank you.